asims13
17.12.2020 •
Mathematics
Which step is the first incorrect step in the solution shown below?
Solve: 2(x + 2) = 6x - 12
Step 1: 2x + 4 = 6x - 12
Step 2: -4x - 2 = 12
Step 3: -4x = 10
Step 4: x = -2.5
A. step 1
B.step 2
C. step 3
D. step 4
Solved
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Ответ:
Step 2 is incorrect. It should be -4x +2= -12
Step-by-step explanation:
Ответ:
(2-3)*16-9+3=
32-48-9+3= 32-48-6
= -16-6= -25